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Installing 4.1 on Laravel 8

See original GitHub issue

Bug report

What I did

Ran

composer require backpack/crud:"4.1.*

to install on Laravel 8

What I expected to happen

It to install

What happened

Received the following error.

Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - backpack/crud[4.1.22, ..., 4.1.x-dev] require doctrine/dbal ^2.5 -> found doctrine/dbal[v2.5.0-BETA2, ..., 2.12.x-dev] but it conflicts with your root composer.json require (^3.0).
    - backpack/crud[4.1.0, ..., 4.1.21] require laravel/framework ^7.0|^6.0 -> found laravel/framework[v6.0.0, ..., 6.x-dev, v7.0.0, ..., 7.x-dev] but it conflicts with your root composer.json require (^8.12).
    - Root composer.json requires backpack/crud 4.1.* -> satisfiable by backpack/crud[4.1.0, ..., 4.1.x-dev].

What I’ve already tried to fix it

I have tried to google for a solution but not found one.

Backpack, Laravel, PHP, DB version

Laravel 8.17 PHP 7.3.24

Issue Analytics

State:
Created 3 years ago
Comments:7 (3 by maintainers)

Top GitHub Comments

1reaction

MikePageDevcommented, Dec 17, 2020

I have fixed this by removing doctrine/dbal and installing

0reactions

tabacitucommented, Feb 12, 2021

Hi guys,

Indeed, Laravel 8 supports PHP 8, but it also supports both DBAL v2.5+ and DBAL v3.x. Backpack does support PHP 8 in the latest version, but it does not yet support DBAL v3 (see https://github.com/Laravel-Backpack/CRUD/pull/3517). We do plan to add DBAL v3 support but it could take a few days - and depending on what we find it’s possible that it’ll be a breaking change.

If you don’t have a reason to explicitly ask for DBAL v3 (you don’t use DBAL v3 features in your code), I recommend you remove the doctrine/dbal composer dependency in your project and run composer update - that should have the same result as @lotarbo and @MikePageDev 's solution. Doctrine/dbal v2.12.x does support PHP 8, so it should work just fine.

If you have a dependency that needs DBAL v3, however, since Backpack doesn’t yet support DBAL v3… that’s where you have a problem. The only thing to do in that case is to wait from upgrading that dependency, until we manage to add DBAL v3 support in Backpack. Hopefully we’ll be able to do so in a non-breaking manner 🤞

Cheers!

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